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Table 4 Results of a model using age, sex, baseline PHQ-9 score and chronotype to predict the number of depressive episodes during the follow up period as derived from the LIFE interview

From: Late chronotype predicts more depressive symptoms in bipolar disorder over a 5 year follow-up period

 

Rate ratio [95% CI]

Age (years)

Sex (male)

PHQ-9

Early chronotype

Late chronotype

Depression

0.997

[0.992–1.001]

0.961

[0.848–1.090]

1.051

[1.043–1.059]

0.984

[0.825–1.173]

0.946

[0.796–1.124]

  1. Females and normal chronotype were used as reference groups
  2. Bold RRs are significant at p < 0.01